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    • 1. 发明申请
    • PROCESS FOR THE PREPARATION OF FORMYLVALERIC ACID AND ADIPIC ACID
    • 制备异戊酸和丙二酸的方法
    • WO2014111446A1
    • 2014-07-24
    • PCT/EP2014/050764
    • 2014-01-16
    • DSM IP ASSETS B.V.
    • PARTON, Rudy Francois Maria JozefJANSSEN, Michèle Catherine ChristianneENGENDAHL, BarthelVRIES, DE, Johannes Gerardus
    • C07C51/14C07C51/373C07C51/42C07C51/44C07C51/48C07C57/03C07C59/147C07C51/09C07D307/32
    • C07C51/373C07C51/09C07C51/12C07C51/14C07C51/42C07C51/44C07C51/48C07D307/32C07C59/147C07C55/14C07C57/03
    • The invention relates to a process for the production of 5-formylvaleric acid and adipic acid or esters thereof from an isomeric mixture of pentenoic acid or esters thereof said mixture comprising at least 4-pentenoic acid or esters thereof, and further comprising 3-pentenoic acid and/or 2-pentenoic acid or esters thereof, theprocess comprising: (a) subjecting the isomeric mixture of pentenoic acid to a hydroformylation reaction comprising a hydroformylation catalyst which is non-isomerizing towards the pentenoic acid or esters thereof to obtain a mixture comprising 5-formylvaleric acid or esters thereof and further comprising 3-pentenoic acid and/or 2-pentenoic acid, or esters thereof; (b) separating the 3-pentenoic acid and/or 2-pentenoic acid, or esters thereof from the 5-formylvaleric acid or esters thereof; (c) subjecting the separated pentenoic acids or esters thereof to a carbonylation reaction comprising an isomerizing carbonylation catalyst to obtain adipic acid or esters thereof; (d) optionally isolating the adipic acid or ester thereof; and (e) optionally isolating the separated 5-formylvaleric acid or esters thereof. The process allows for efficient production of two different intermediates for producing polyamide using a single process, with good selectivity, little waste, in an economically efficient fashion. The process is very suitable to use an isomeric pentenoic acid mixture obtained from valerolactone, and can be used to produce renewable polyamide intermediates using a single process.
    • 本发明涉及一种由戊烯酸或其酯的异构体混合物生产5-甲酰戊酸和己二酸或其酯的方法,所述混合物包含至少4-戊烯酸或其酯,并且还包含3-戊烯酸 和/或2-戊烯酸或其酯,所述方法包括:(a)使戊烯酸的异构体混合物进行加氢甲酰基化反应,所述加氢甲酰化反应包含对戊烯酸或其酯异构化的加氢甲酰化催化剂,以获得包含5 - 甲酰基戊酸或其酯,并且还包含3-戊烯酸和/或2-戊烯酸或其酯; (b)从5-甲酰戊酸或其酯分离3-戊烯酸和/或2-戊烯酸或其酯; (c)使分离的戊烯酸或其酯进行包含异构化羰基化催化剂的羰基化反应以获得己二酸或其酯; (d)任选分离己二酸或其酯; 和(e)任选分离分离的5-甲酰基戊酸或其酯。 该方法允许以经济有效的方式有效地生产用于使用单一工艺生产聚酰胺的两种不同中间体,具有良好的选择性,少量的废料。 该方法非常适合于使用由戊内酯获得的异戊烯酸混合物,并可用于使用单一工艺生产可再生聚酰胺中间体。
    • 5. 发明申请
    • PROCESS FOR THE PRODUCTION OF FURFURAL AND LEVULINIC ACID FROM LIGNOCELLULOSIC BIOMASS
    • 从肉桂生物量生产糠酸和橄榄酸的方法
    • WO2014009521A1
    • 2014-01-16
    • PCT/EP2013/064782
    • 2013-07-12
    • DSM IP ASSETS B.V.
    • VRIES, DE, Johannes GerardusKROON, Johannes AugustinusPARTON, Rudy Francois Maria JozefWOESTENBORGHS, Pierre LouisRIJKE, DE, Arie
    • C07D307/50C07C51/00
    • C07C51/00C07C51/47C07D307/50C07C59/185
    • The invention relates to a process for producing furfural and levulinic acid from lignocellulose-comprising biomass, said process comprising: (a) adding water and optionally an acid to said biomass to form a slurried biomass; (b) subjecting said slurried biomass to hydrolysis to form a hydrolysate comprising C5 and C6 sugars and further comprising (insoluble) cellulose and lignin; (c) subjecting said hydrolysate comprising said C5 and C6 sugars and said (insoluble) cellulose and lignin to solid / liquid separation to yield a first aqueous fraction comprising at least part of said C5 and C6 sugars and a first solid fraction comprising at least part of said cellulose and lignin; (d) optionally concentrating said first aqueous fraction; (e) adding an organic solvent to the (optionally concentrated) first aqueous fraction to form a biphasic system; (f) heating said biphasic system to a temperature within the range of 120 - 220°C and maintaining said biphasic system at that temperature range for a time sufficient to form furfural; (g) cooling the biphasic system comprising furfural obtained in step (f); (h) optionally subjecting the cooled biphasic system obtained in step (g) to solid / liquid separation and recovering the biphasic system; (i) subjecting the cooled biphasic system obtained in step (g) or the recovered biphasic system obtained in step (h) to a separation step to yield an organic phase comprising at least part of said furfural and an aqueous phase comprising at least part of said C6 sugars and optionally further comprising furfural; (j) optionally recovering furfural from said organic phase; (k) optionally using the recovered organic phase obtained in step (j) to extract furfural from the aqueous phase obtained in step (i) by adding said recovered organic phase to said aqueous phase and repeating step (i) and optionally step (j); (I) adding water and optionally an acid to the first solid fraction obtained in step (c) to form a suspension; (m) subjecting the suspension obtained in step (I) to a temperature of between 140 and 220°C to form levulinic acid; (n) subjecting the suspension comprising levulinic acid obtained in step (m) to solid / liquid separation to yield a second aqueous fraction comprising levulinic acid and a solid fraction; and (o) optionally recovering said levulinic acid from the second aqueous fraction. The process advantageously allows for the production of both furfural and levulinic acid from lignocellulosic biomass, with no or little waste. Solvents and energy are used in an efficient way. The process can be done in a continuous fashion and gives less reactor fouling and results in less insoluble char. It benefits energy conservation.
    • 本发明涉及由含木素纤维素的生物质生产糠醛和乙酰丙酸的方法,所述方法包括:(a)向所述生物质中加入水和任选的酸以形成浆状生物质; (b)使所述浆状生物质水解以形成包含C5和C6糖的水解产物,并进一步包含(不溶性)纤维素和木质素; (c)使包含所述C5和C6糖的所述水解产物和所述(不溶性)纤维素和木质素进行固/液分离,得到包含至少部分所述C5和C6糖的第一含水部分和包含至少部分的第一固体部分 的所述纤维素和木质素; (d)任选地浓缩所述第一含水部分; (e)向(任选浓缩的)第一含水部分中加入有机溶剂以形成双相体系; (f)将所述两相系统加热至120-220℃的温度,并将所述两相体系在该温度范围内维持足以形成糠醛的时间; (g)冷却包含在步骤(f)中获得的糠醛的双相系统; (h)任选地将步骤(g)中获得的冷却的双相体系进行固/液分离并回收双相体系; (i)将步骤(g)中获得的冷却的双相系统或步骤(h)中获得的回收的双相体系进行分离步骤,得到包含至少部分所述糠醛的有机相和含有至少部分 所述C6糖并且任选地进一步包含糠醛; (j)任选地从所述有机相中回收糠醛; (k)任选地使用步骤(j)中获得的回收的有机相通过将所述回收的有机相加入到所述水相中并重复步骤(i)和任选的步骤(j)从步骤(i)获得的水相中提取糠醛, ; (I)向步骤(c)中获得的第一固体部分加入水和任选的酸以形成悬浮液; (m)使步骤(I)中获得的悬浮液温度在140-220℃之间以形成乙酰丙酸; (n)使包含步骤(m)中获得的乙酰丙酸的悬浮液进行固/液分离以产生包含乙酰丙酸和固体级分的第二含水级分; 和(o)任选地从第二含水部分回收所述乙酰丙酸。 该方法有利地允许从木质纤维素生物质生产糠醛和乙酰丙酸,没有或少量的浪费。 溶剂和能量以有效的方式使用。 该方法可以以连续的方式进行,并且产生更少的反应器结垢并导致较不溶性的焦炭。 它有利于节能。